Evaluation by G Webster of ASE. Two possible features were recorded, although they were likely to be geological in origin. Tiny unstratified fragments of Late Bronze Age/Early Iron Age pottery and medieval tile were the only artefactual material recovered.

Evaluation and subsequent excavation of four areas by S Wilson of COT. Evidence was revealed for a small rural settlement dating from the Middle–Late Iron Age that comprised at least two roundhouses with associated four-post structures. The site appeared to be unenclosed but ditches and trackways suggest that it was sited in a managed landscape. Charred plant assemblages indicate a rural settlement with domestic activities, including a small amount of crop processing taking place in the vicinity.

Strip, map and record excavation by T Collie of SCAU, undertaken in 2016, revealed a complex, Middle–Late Bronze Age/Early Iron Age system of ditches across the east of the site. Oriented north–south/east–west and in places formed of a double ditch, it extended to the centre of the site, where the principal ditch turned west towards the river Ash. The ditches may represent a domestic enclosure, although their generally shallow nature suggests they form part of the wider Bronze Age field system known to extend across a large area of the river Thames gravels both north and south of the river.

A test pit evaluation by W Weller of SCAU within the triangular earthwork known as ‘The Camp’, undertaken in response to an illegal metal detecting incident that uncovered three hammered bronze items, including a nearly intact bowl. A number of replaced ‘plugs’ resulting from the incident were identified and a 2m2 test pit was excavated around one of them, deemed the most plausible for the source of the items.

A phase of post-demolition evaluation, test pits and strip, map and record excavations by W Perkins of PCA, following pre-demolition evaluation in 2016 (SyAC 101, 214), showed severe disturbance across much of the site owing to its former industrial uses. However, initial evaluation showed that areas of undisturbed land were present and the later phase of work revealed more of a series of natural palaeochannels, first recorded in 2016, threading across the north-west of the site.

Evaluation by K Bower of PCA revealed extensive modern truncation owing to gravel extraction and landfill across the north and west of the site. A small quantity of residual Iron Age/Early Roman pottery was recovered from a pair of parallel ditches, shown to correspond with a former field boundary on the 1806 Walton Enclosure Map.

Evaluation by W Weller of SCAU revealed a posthole containing a small assemblage of pottery of Late Bronze Age or Early Iron Age date. A larger collection of struck flint recovered from the posthole and within the overburden was of similar later Bronze Age date.